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  • Re: SIG_DFL

    From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to comp.lang.c on Sat Jan 10 21:22:06 2026
    From Newsgroup: comp.lang.c

    On Mon, 10 Nov 2025 16:54:44 -0000 (UTC), Lew Pitcher wrote:

    So it appears that SIG_IGN and SIG_DFL were formalized as part of
    7th Edition Unix.

    This came out in 1979, according to <https://wiki.tuhs.org/doku.php?id=systems:7th_edition>. That was
    nearly 4 years after the 6th edition <https://wiki.tuhs.org/doku.php?id=systems:6th_edition>.

    What happened in-between? The porting effort to the Interdata 8/32 was
    one thing. That would have flushed out a whole bunch of PDP-11-isms
    from the source code and APIs.
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